Location
Hilton Waikoloa Village, Hawaii
Event Website
https://hicss.hawaii.edu/
Start Date
7-1-2025 12:00 AM
End Date
10-1-2025 12:00 AM
Description
In AC microgrid systems, maintaining stability and reliability is paramount, especially during fault conditions. This paper presents a novel fault mitigation technique for grid-forming inverters, focusing on instantaneous current limiter schemes. The primary objective of this approach is to protect inverter’s internal semiconductor components under short-circuit faults conditions by implementing advanced reference frame techniques that limit current and voltage outputs. At the same time, providing fault protection/mitigation during symmetrical and asymmetrical disturbances, the investigated control scheme allows inverters not to disconnect during faults, thus maintaining grid stability and reliability, allowing time for grid protection to react and operate normally. Simulation results demonstrate the efficacy of the proposed scheme in enhancing the resilience of AC microgrid systems, facilitating seamless integration of renewable energy sources. This paper addresses a critical need in modern power systems by providing a robust solution for inverter fault tolerance, protection and short circuit fault management for AC microgrids.
Recommended Citation
Cisneros Saldana, Jorge and Begovic, Miroslav M., "On Fault Mitigation Schemes for Grid Forming Inverters in AC-Microgrids: Studying Instantaneous Current Limiters" (2025). Hawaii International Conference on System Sciences 2025 (HICSS-58). 8.
https://aisel.aisnet.org/hicss-58/es/renewable_resources/8
On Fault Mitigation Schemes for Grid Forming Inverters in AC-Microgrids: Studying Instantaneous Current Limiters
Hilton Waikoloa Village, Hawaii
In AC microgrid systems, maintaining stability and reliability is paramount, especially during fault conditions. This paper presents a novel fault mitigation technique for grid-forming inverters, focusing on instantaneous current limiter schemes. The primary objective of this approach is to protect inverter’s internal semiconductor components under short-circuit faults conditions by implementing advanced reference frame techniques that limit current and voltage outputs. At the same time, providing fault protection/mitigation during symmetrical and asymmetrical disturbances, the investigated control scheme allows inverters not to disconnect during faults, thus maintaining grid stability and reliability, allowing time for grid protection to react and operate normally. Simulation results demonstrate the efficacy of the proposed scheme in enhancing the resilience of AC microgrid systems, facilitating seamless integration of renewable energy sources. This paper addresses a critical need in modern power systems by providing a robust solution for inverter fault tolerance, protection and short circuit fault management for AC microgrids.
https://aisel.aisnet.org/hicss-58/es/renewable_resources/8